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gdk: use EGL_KHR_swap_buffers_with_damage

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It appears that NVIDIA does not implement EGL_EXT_swap_buffers_with_damage
on their EGL implementation, but does implement the KHR variant of it.
This checks for a suitable implementation and stores a pointer to the
compatible implementation within the GdkGLContextPrivate struct.
This commit is contained in:
Christian Hergert 2022-03-02 22:59:23 -08:00 committed by Matthias Clasen
parent 33a1cf203e
commit f0e8ee3c29
3 changed files with 8 additions and 5 deletions
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2
gdk/gdkdisplay.c
View File

@ -1721,8 +1721,6 @@ gdk_display_init_egl (GdkDisplay *self,
self->have_egl_buffer_age =
epoxy_has_egl_extension (priv->egl_display, "EGL_EXT_buffer_age");
self->have_egl_swap_buffers_with_damage =
epoxy_has_egl_extension (priv->egl_display, "EGL_EXT_swap_buffers_with_damage");
self->have_egl_no_config_context =
epoxy_has_egl_extension (priv->egl_display, "EGL_KHR_no_config_context");
self->have_egl_pixel_format_float =

1
gdk/gdkdisplayprivate.h
View File

@ -107,7 +107,6 @@ struct _GdkDisplay
/* egl info */
guint have_egl_buffer_age : 1;
guint have_egl_swap_buffers_with_damage : 1;
guint have_egl_no_config_context : 1;
guint have_egl_pixel_format_float : 1;
guint have_egl_win32_libangle : 1;

10
gdk/gdkglcontext.c
View File

@ -117,6 +117,7 @@ typedef struct {
#ifdef HAVE_EGL
EGLContext egl_context;
EGLBoolean (*eglSwapBuffersWithDamage) (EGLDisplay, EGLSurface, const EGLint *, EGLint);
#endif
} GdkGLContextPrivate;
@ -420,6 +421,11 @@ gdk_gl_context_real_realize (GdkGLContext *context,
gdk_gl_context_set_is_legacy (context, legacy_bit);
if (epoxy_has_egl_extension (egl_display, "EGL_KHR_swap_buffers_with_damage"))
priv->eglSwapBuffersWithDamage = (gpointer)epoxy_eglGetProcAddress ("eglSwapBuffersWithDamageKHR");
else if (epoxy_has_egl_extension (egl_display, "EGL_EXT_swap_buffers_with_damage"))
priv->eglSwapBuffersWithDamage = (gpointer)epoxy_eglGetProcAddress ("eglSwapBuffersWithDamageEXT");
gdk_profiler_end_mark (start_time, "realize GdkWaylandGLContext", NULL);
return api;
@ -608,7 +614,7 @@ gdk_gl_context_real_end_frame (GdkDrawContext *draw_context,
gdk_profiler_add_mark (GDK_PROFILER_CURRENT_TIME, 0, "EGL", "swap buffers");
if (display->have_egl_swap_buffers_with_damage)
if (priv->eglSwapBuffersWithDamage)
{
EGLint stack_rects[4 * 4]; /* 4 rects */
EGLint *heap_rects = NULL;
@ -632,7 +638,7 @@ gdk_gl_context_real_end_frame (GdkDrawContext *draw_context,
rects[j++] = rect.width * scale;
rects[j++] = rect.height * scale;
}
eglSwapBuffersWithDamageEXT (gdk_display_get_egl_display (display), egl_surface, rects, n_rects);
priv->eglSwapBuffersWithDamage (gdk_display_get_egl_display (display), egl_surface, rects, n_rects);
g_free (heap_rects);
}
else